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Old 14-01-2010, 10:38 PM posted to aus.gardens
David Hare-Scott[_2_] David Hare-Scott[_2_] is offline
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First recorded activity by GardenBanter: Sep 2008
Posts: 3,036
Default The real Global warming problem...

Jonno wrote:
*In the USA they wished it was warmer...
http://tinyurl.com/y9x8dns*


This is like a religious cult to you. You feel you must proselytise and at
the same time you never apply any critical faculties to the issue. Coleman
gives us the same old one-line half truths that you have dug up before but
never once do you consider that the spin that he gives has been debunked
many many times. And some of them are so *obviously* nonsense where you
don't need to be any sort of scientist to see that they are wrong..

About CO2

- It's natural and plants need it. (true) Suggesting that therefore it is
totally benign (Not true). Being natural does not mean it cannot cause
harm if the complex systems that include it are forced out of balance. Let
me give you an example where the weakness of this arguiment is clearer.
Hydrochloric acid is natural to your body and your digestion needs it,
therefore it is benign.

- It's always been here and it is a trace gas (true). Therefore CO2 is not
causing harm. (false this is a complete non sequitur) He presents no
evidence at all that being present in small quantities means it can do no
harm He is if fact assuming his conclusion. Many things that have always
been in the environment in small amounts can be harmful in excess.

About glacial and intergalcial periods

- There have been warmer and cooler periods throughout earth's long history
that were not caused by mankind. (True.) This warm period is just one of
those. (Presented with no evidence and despite evidence to the contrary)
Therefore this warm period is normal and nothing to worry about. (false
conclusion)

About graphs of CO2 and temperature.

- The graph of temperature in the last 200 years does not follow that of
CO2. (true) Therefore the temperature change cannot be because of CO2.
(false,) This is a strawman argument, climate scientists do not say that
these graphs must follow on to the other, they say that the system is more
complex than that but nevertheless anthropogenic CO2 is forcing that system.

- Radiation from the sun is responsible for the changes in temperature seen
recently because the graph of one follows the other (false) See
http://www.realclimate.org/ for the explanation.

And then we go into the "climategate" and "scientists take money for this"
smear campaign.

Jonno, please stop posting this stuff uncritically. Try checking out what
these deniers are saying and think about it instead. They keep pulling the
wool over your eyes.

And BTW being a TV weatherman for 55 years makes you an old TV weatherman in
an expensive suit not a climate scientist.

David